Channel-punching machine.



F. A. STEVENSON. CHANNEL PUNCHING MACHINE.

APPLICATION FILED FEB-10,19l4- 1,164,027. Patented Dec. 14, 1915 3 SHEETS-SHEET 1.

INVENTOR! j wmm ATTORNEY COLUMBIA PLANOGRAPH co., WASHINGTON, D. c.

F. A. STEVENSON.

CHANNEL PUNCHING MACHINE. APPLICATION FILED FEB. 10. I914.

Patented Dec. 14, 1915.

'3 SHEETSSHEET 2.

v W I m a I COLUMBIA PLANDGRAPH CCL. WASHINGTON. n c.

F. A. STEVENSON. CHANNEL PUNCHING MACHINE.

1,164,027 APPLICATION FILED FEB. 10. 1914. Patented Dec. 3 SHEETS-SHEET 3.

IN VEN TOR. W B Y WITNESSES A TTORNE Y COLUMBIA PLANDGRAPH 00.,WAsHlNmN. D. c.

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CHAIlYll'EL-PU-NCHING MACHINE.

t ee r- Spe'cification of Letters Patent.

Patented Dec. Ml, 19153.

Application filed. re nin 10, 1314. Serial 210. 817,799.

To (LU whom it mag concern:

Be it known that l, FRE ERI K STEVEN- SON, residing.- at Detroit, Michigan, and being a citizen of the United'States, have invented certain new andusei'ul Improve.- ments in Channel-Puncl1ing Machines, of w'hichthe following isla full, clear, and exact description, such as will enable others skilledv in the art to which. it appertainsto make and; to use the same, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though. it is to be understood that the invention" is not limited tothe exact details of construction. shownv and described as it isobvious that various modifications thereof will occur to persons skilled in the art.

' In said drawings: Figurel'represents a front elevation of the machine. Fig. 2 is longitudinal vertical sectional. view along the lines 2 2 of Figs 4: and. 5. Fig. 3. is another. longitudinal vertical sectional view but in a plane. further removed as indicated by lines 3-3 of Figs. 4., and 5. Fig. i is an inverted plan view of: the upper part of; the structure of the machine above the line 4 -4: of Fig. 1, and Fig. 5 is a plan of the lower part of such structure below the line 5 5 of Fig. 1. Fig. G-is a. vertical transverse view along the lines (i-6 of Figs. d and 5. Fig. 7 is a detail transverse. view through the upper part of the machinev along the line 'Z7- of 1, showing the means. for gagging the horizontal punches; 1 and, Fig. 8 is a further detail transverse view along the line 88, of 1, wherebv themanipulation of the gag for thevertical adjustable punchesis made clear.

The obiect of the present. invention is. to

siniplifv the pertoration of U-sha ed struc tures, and the particular.appl cation of the invention is to the punching of holesin COI11.

nie cia-l channels, though channelpressings.

an d other pieces. with webs having, angularl-y d sposed flanges are susceptible. to treatment by machines embodying the principles here.- in disclosed.

With more articularity, the obiect is the.

construction of a machine adapted to. be set into av multiple. punch, and which shall codperate therewith. so. .as..to punch holes in flan es or. walls. which lie in substantiallv ertical planes. and also those holes which lie in st aight longitud nal lines'in the web,

. tester; hole eane in t e set. t at alinernent with said rows of holes disposed in straight lines. All holes requiredin a given channel can therefore be produced with this machine.

Considering the various views, 1 indicates the lower plate, which is provided with certain integral blocks and walls to be referred to later; Upper plate 2 also has blocks, walls and ribs integral with it.

Disposed syin netrically each side of the center of the lower plate 1 is the raised portion or block 3, which contains grooves t and 5, that are parallel with the front edge oi. platel, and a groove recess 6 at the rear 0t said, block. In the groove d are set up ordinarv die blocks .7, carrying dies 8 and 8, theblocks being flared outwardlv at the bottom that they may possess a dovetail retention in block 3, the inner wall of the,

grooved following the inner flare of the die blocks 7 and a retaining plate 9, beveled to agree with the outerflare of the die blocks, being clamped by inean's of bolts 10 between the outer sidesof die blocks? and the outer wall of groove 4, thereby rigidly securing the die blocks with their dies to the block 3 of plate 1.

Immediately back of roove l is'n'roo e 5, in wh ch slides the adiustable. die block 11, carrying dies 12 and 19*, the adjusta le die block having a tongue and groove connection with the block 8. of plate 1. Back of groove 5 is recess 6, retainin bv a tongue and groove connection and also bolts 13. a horizontal d e block 14: in which is seated at each end; a die 15, the axisof whose hole is horizontal and parallel to the rear edge of plate 1. Suspended above the lower plate 1 is upper plate. also Pro ided with a centrallv positioned area, 16 of. slightlv increased, cross section, in a measure corresponding to block 3 of lower plate 1, and

havin depending vertical walls 17 and 18 Ich run parallel with the front and rear edges of plate 2. T heplate 2, upoiits upper surface and within the limits of the area 16, is pro ided along its front ed e wi h a block 19 containinrran ordinarv T-slot 20.

Punch blocks 21 are attached at their outer ends to the. upper pla e, 2 bv means of bolts the heads 0 wh ch rest n the slot 20 of the b ock 19. The inner ends of these punch blocks rest on a flange. of the wall 17. when the nuts of halts 20 are. tightened the punch blocks 21, are rigidly secured to upper plate 2. Thep'unch blocks 21 carry punches 23 and 23 which are in vertical alinement with their respective dies 8 and 8 located in the die blocks 7 Each of the walls 17 and 18 at its lower extremity is provided with a flange for retaining the adjustable punch block 24 which is located b tween them. Said punch block is provided with punches 25 and 25, the vertically disposed axes of which are in coincidence with the vertical axes of the dies 12 and 12 of the adiustable die block 11, and are always so maintained. as will be later made clear.-

At each end of the upper plate 2 on its under side, is a prism'oidal integral block 26 containing a relatively deep longitudinal channel or recess 27. The bottoms of these channels 27 are closed at the rear of each, and again at a short distance in advance of the rear, by loops, whereby bearings are created for the upper cylindrical ends of nearly vvertically disposed toggle members 28. Lower ends of toggle 28 bear upon a horizontal cylindrical pivot 29, as best seen in Figs. 3 and 5, and, with their inner ends also bearing on each pivot 29,tw0 other similar toggle members 30 and 31 of each toggle mechanism, inclined downwardly and outwardly, are held in operable relationship at this point by a cap 32, screwed onto one end of the pivot 29, which at its opposite end has a. flange similar in form to the cap.

Both the flange of the pivot 29 and the cap 32 are annularly grooved for the reception of the ends of the arcuated flange present at the pivot bearing ends of each toggle member, and, in overlapping these .flanges, the can and the pivot flange keep them in proper contact with said pivot 29. The lower outer ends of toggle members 30 are seated as at 3 .111 end walls of the lower plate 1, their cylindrical ends or projec tions being retained in holes 3 1 in the vertical walls 35 at and near the rear of lower plate 1, said toggle members 30 being thus confined to a rotary movement. The lower ends of toggle members 31 project oppositelv to the corresponding ends of toggle members 30, and are seated in horizontal movable heads 36, that have vertical side walls in which are holes 36 to receive and restrain the lower cylindrical ends of toggle n embers 31. The lower ends of toggle members 30 and toggle members 31 are seated and restrained in substantially the same manner. To each horizontal head is secured a backing plate 37, against which bears the punch stem of each horizontal punch 38, the latter being carried by horizontal punch block 39 bolted to horizontal head 36.

Upon the descent of upper plate 2, the toggles 30 and 31 assume an approximately horizontal position, the'horizontal heads 36 move towardhorizontal die block 14, carrying-horizontal punches 38" with them. In performing work, these punchespenetrate the flanges of the channel, shown at A in dot and dash lines,perforate it and enter the dies 15., The resultant slugs find an exit through passages 40, which merge'and have an outlet at 41, from whence the slugsdrop to a scrap pile; Saidhorizontal die blocks 14 not onl assist in uidin the work but also hold the channelin position so as to strip itfrom the punches upon withdrawal of the latter. Slugs from dies 8' and 'S escape through passages e2 in diefblocks 7 and 43 lower platel. From dies 12 and 12 in die block 11, passages 44 in the latter and 45 inlowerplate 1 constitute the path 7 lines. The punch blocks 21 and die blocks 7 may then be clamped in place, so to remain throughout the particular job in hand, as

before described. But every here and there will be found indicated on a guide template L aihole out of alinement with such longitudinal rows of holes. To punch these the ad iustable punch. block and aclpistable die For punching these holes, punch block, 24 and 11, respectively, are moved laterally across the channel web to come over the transverse position of the intended hole. The longitudinal position of said hole ha ing been secured through the feed of the channel A through the machine, the punch 25 or 25*. according to the size the hole is to be, will then bedirectly over the hole location in the web. andits respective die 19 or 12 directly under it.

' Means for movin adiustable block 24 and adjustable die block 11 consist of rack 46 for block 2+1 and rack 47 for-die block 11, pinions 48 and 49; 48 meshing with rack 46, and 49 with rack 47, a vertical shaft 50 which rotates the pinions and a hand wheel 51, which has a square aperture in its huh I which surrounds the squared portion of the 7 vertical shaft 50 and turns the latter whenever the hand wheel is. given rotary motion.

Pinion .48 is keyed to the upper end of; shaft 50. while pinion '49 has a square hole at lts center which surrounds the squared portion of the shaft, and thereforeeach 'responds to any rotative movement of said shaft 50. Upon the downward thrustiof upper plate 2, the shaft 50 is carried down,

taking'with it pinion i8. Pinion 49. is capable only of rotary'movement and shaft simply slides through it into hole 52 in lower plate 1, positioned to receive it. Up per plate 2 is furnished with an integral rectangular block 53, having a semi-cylindri cal protuberance 54, the part 53 being recessed to receive and guide rack 46 and part 54 to accommodate pinion 1S and the top of shaft 50. A cover plate 55 bolted to block 53 and protuberance 5 1 completes the housing'of the movable parts just referred to, and, when in place, establishes a bearing for the upper end of shaft 50. "A similar rectangular block 56 and semi-cylindrical protuberance 57 is formed on lower plate 1, and the former is recessed for the reception and guidance of rack 4'7, while the latter receives pinion 49 and the lower end of shaft 56. A cover plate 58 is employed to completethe housing of the parts last described. The cover plate 58 also forms, by a vertical extension, a bearing for the shaft 50, and here it is internally fitted with'a wearing bushing, as will be seen in Fig. 2.

The manner of selecting and rendering the punches operative, or the reverse, is'as follows: First taking under consideration punches 23 and 23 carried by punch blocks 21, being the first row of vertical punches encountered from the front of the machine, at the center, it will be noted by reference to Figs; 1, l, 6 and 8, that each is provided with a gag handle 59. This gag handle is Lshaped and in its longer andhorizontal leg is provided with a longitudinally extending slot 60. The bolts 22 pass through the slots 60 and prevent the accidental com plete removal of any of the gags 61, which latter are fastened to the inner ends of gag handle 59 as disclosed in Fig. 6. 'W'ithal'l the gag handles 59 in the position shown in Fig. 6, none of the punches 23 or 23 will be operative, but should it be desired to employ one or more of punches'28, the gag handle or handles 59 associated with such punches are pushed part way in until the gag or gags 61 fill the space immediately o er the top of such punch or punches 23. Thereupon, the downward stroke of upper plate 2 carries downwardlv both the punches 28 and 23 but, upon reaching the web of the channel A to be punched, only the punch or punches over which the gag or gags 61 are positioned will be caused to penetrate the work and ente the d e or dies 8. The other punches 23 will recede into the space above the top of their punch stems, there being suffic ent clearance between the top of the punch stems and the underside of plate 2 to prevent contact of the punchstems and said underside of plate 2. Thus only when the gags 61 are inter osed will thejpunches be come operative." By a'furtherinward movement of any gag 61, the space above the stem of the punch 23 with which such gag is associated will be occupied by said gag and such punch 23 caused to become operative, in quite the same way that punches 28 were rendered "so. Punches 25 and 25, adapted to travel across the web of the channel A to reach any hole in the web out ofalinement with the punches 23 and 23 are controlled by gag 62. Gag 62 lies in a broad groove or recess 63 in the top of the adjustable punch block 24. In the position shown most clearly in Fig. 6,11either of the punches 25 or25 is operative. But, by pushing in the adjustable punch gag handle 64, part way, ga 62 is brought over so the stem of punch 25, which will then produce a hole in the web of the channel upon the downward thrust of upper plate. The rear end of gag handle" 6% is provided with teeth constituting a rack which meshes with a; pinion 65, the latter being rotated by the former when it is moved in or out. Pinion 65 also meshes with a rack formed in another bar" 66 whichis screwed to one end of gag 62 and imparts motion to the latter when handle Gel is moved. Pinion 65 is provided with a central square hole which fits about a squared end of shaft 67, causing this shaft to rotate with it. 'At the opposite squared end of the same shaft is secured a similar pinion 68, meshing with a rack bar 69, which is screwed to the other end of gag 62. Hence, when the adjustable punch gag handle 64 is pushed'inwardly the rack on its rear end revolves pinion 65, thus impelling rack bar 66 which results in carrying gag 62 to the desired position. The auxiliary pinion 68 revolving in unison with pinion 65 and the shaft 67 which carries both, impels the auxiliary rack bar-69 that is attached to the end of the gag 62 opposite that to which rack bar 66 is screwed, thus preventing any deflection of the gag 62. A further inward thrust of gag handle 64 will cause gag 62 to come over punch 25, which will then be effective and punch 25 goes out ofservice.

To use one of the horizontal punches 38. which are similar in design, a gag 70, having a gag handle 71, is pushed inwardly. See Figs. 1, 2, 3, e and 7. The gag handles 71 are supported toward their outer ends by U-shaped brackets '72, while further back in the slots 27 of the prismoidal blocks will be found other somewhat similar brackets 72 The function of the latter is to receive and support the gags 70 before they have been entirely withdrawn from over the toggle bearin blocks 73, and thereafter. T oggle blocks 7 3 are always resting upon the upper ends" of vertical toggle members 28, and, when one or both of thehorizontal punch gags are inserted above them and beneath the undersideof unper"plate 2, the'd'own- Ward. thrust ofsaid plate is communicated 3 the case may be.

to gag 70, toggle bearing blocks 73, vertical toggle members 28 and pivot 29. The downward movement of pivot 29 tends to straighten out toggle members 30 and 31,

thereby forcing the horizontal heads to straight line, to produce which punches 23.

and 23 were provided, the gag. handle 59 for the punch over the position of the proposed hole is pushed inwardly. For one sized hole it is moved until its gag 61 is over punch 23, and for another sized hole it is pushed in still farther until its gag is over punch 23, it being understood that punches 23 and 23 are of diiferent diameters. The upper plate 2 is then caused to descend by the actuation of the multiple punch slide which carries it. Whichever punch is gagged is forced through the web of the channel A and into its die 8 or 8 as At such times as hole positions are encountered during the passage of the channel through the machine that are not in line with any of the punches 23 and 23, hand wheel 51 is rotated sufficiently to cause the squared vertical shaft 50 to drive pinions 4S and 49 the requisite amount to impel their racks 46 and l7, which in turn will bring the adjustable punch block 24, carrying punches 25 and 25 and adjustable die block 11 with its dies 12 and 12 to a point where the proper punch will be in a position to produce the hole desired. Gag handle 6%- is then pushed in (see Fig. 8) and its rack revolves pinion 65 with which also turns shaft 67 and auxiliary pinion 68. The two pinions just mentioned drive rack bars 66 and 69 thereby carrying gag 62 over punch 25 or 25, as desired, and in accordance with the amount of movement of the hand wheel 51.

It is to be noted that, as best disclosed in Figs. 2 and -l:, the gag 62 is of greater length than the distance punches 25 and 25 are capable of traveling transversely of the web of the channel. For this reason, no matter what transverse position these punches occupy the gag 62 can always be brought over either one of them. As hole location in the flanges of the channel A come opposite the horizontal punches to produce the holes, the gag handle 71 of the horizontal punch to be'operated is pushed in. This over toggleb'earingblock places gag and under upper plate 2. A downward stroke of this plate, as before described, proa group of fixed vertical punches, selective means for rendering same operable, a plurality of slidable vertical punches movable parallel thereto, controlling means for said slidable punches separate therefrom but attached thereto, means rendering any of said slidable vertical punches operable, a plurality of oppositely disposed horizontal punches, selective means for rendering same operable, and means for operating selected punches.

2. In a machine of the character described, a group of fixed vertical punches, selective means for rendering same operable, said fixed punches being'arranged transversely of channel-shaped work and being adapted'to punch all holes in alinement, a plurality of slidable vertical punches movable parallel to said fixed punches to punch various sized holes out of alinement with the holes punched by said fixed punches, controlling means for moving said slidable punches transversely of the work separate therefrom but attached thereto, selective means rendering any of said slidable vertical punches operable. a plurality of oppositely disposed horizontal punches for punching holes in both flanges of said channel-shaped work, means adapted to actuate said horizontal punches and means for operating selected punches.

3. In a punch of the character described,

an upper plate and a lower plate, a plurality of selective vertical punches and dies positioned, respectively, in the former and latter, certain of said vertical punches being carried in different planes in a punch block slidably retained in said upper plate, and certain dies in a slidable die block in said lower plate, controlling means for moving said slidable punch and die blocks transversely of the work, separate therefrom but attached thereto, a gag lying .in a recessed portion of said punch block and being restrained from movement therewith, said punch block being capable of traveling only within the limits of said gag, said gag being adapted to slide across said punch block and over the punches in any of said different planes, said upper plate being adapted to operate selected punches.

4. In a machine of the character described,

ditlerent planes in a punch block retained nrsaid upper plate and slidable, parallel to said fixed punches and certaindies in afslidable block in said. lower plate, controlling means for moving said slidable punch and die blocks transversely of the work, separate therefrom but attached thereto, means for] rendering operable any punch in said slid- V able punch block, said means comprising a gag lying ina recessed portion or" sald punch block, said gag being independent of the movement of said punch block and adapted to slide thereacross to rest over any punch carried thereby, barsxcontaining racks secured to opposite ends ofsaid gag, a shaft supported from said'upper plate, pinions on said shaft meshing with said racks, and an o-p'eratinghandle with a'raclr ineshingwith one of said pinions,said upper plate being adapted to cause the operationoi selected punches. i V v In a machine of the character described, an upper plate and a lower plate, horizontal punches slidably retained in said lower plate, a. work-guiding and punch-stripping double die block secured in said lower plate, said punches and said die block being alined in a single direction,dwork-guiding and punclrstripping Wiper, actuating means for each horizontal punch, and selective means for renderingoperable one or more of said punch actuating means, said upper plate beingadapted to cause the operation of V punches aidected by said selective means.

6. In a machine of the character described,

1 an upper plate and a lower plate, selectable horizontal punches slidably retained in said "lower' plate, dies in a work-guiding and punch-stripping die block, blocks having a plurality of recesses integral with and depending from said upper plate, separate actuating means for each horizontal punch, one'element of which is slidably mounted in one of said upper plate blocks, there being in each oi the latter a bearing block borne upon said element, a gag for rendering said actuating means operable, a support for said handle and another support for said gag when said gag is in an ineffective position, said upper plate being adapted to cause the operation of selective punches.

7. In a machine of the character described, an upper plate having integral depending parallel walls and an integral slotted block, fixed punch blockssupported by one of said flanged 'walls and clamping means retained in said slotted block, punches in said fixed punch block, selective means for rendering any of said fixed punches operable, a slidable punch block, a plurality-of punches carried thereby'and retained between said flanged walls, said slidable. punch block being capable of moving parallel to the punches in said fixed punch blocks, selective means for rendering operable any of the slidable punches, a lower plate, l'xed die-carrying blocks mounted thereon in vertical aline- -ment with saidvlixed punch blocks, a slidable diecarryingdie block maintained in alinemen; with said slidable punch block, and controlling means for moving said slidable punch and die block transversely of the work, separate therefrom but attached thereto, thesaidupper plate being adapted to cause the operation of selected punches.

8. In a machine of the character described,

a groovedlower plate, fixed die-holding die-- blocks with outwardly extending bottoms cooperating with said grooved plate, a retaining plate in the groove overlapping said die-holding blocks and adapted to "form with a'wall of said groove a recess in which said die blocks are clamped by said retaining plate and Vmeans securing said retaining plateto said lower plate. I

9; In a machine of the character described, a movable plate and .a stationary plate, punches and dies fixed in the former and latter, respectively, a slidable punch block in said movable plate and a slidable die-block in said stationary plate, a plurality of punches carried by the slidable punch block and dies carried by the slidable die'blocl: respectively, said slidable punch and die blocks being adapted to pass said fiXedpunches and dies, controlling means for moving said slidable blocks in unison'and selective means render ing desired punches operable, said movable plate being adapted to operate such punches.

10. In a machine of the character described, a movable plate and a stationary base, punches and dies carried, respectively, by the former and latter, other difierently directed punches and dies mounted in said stationary base and actuating means for the last mentioned punches, said movable plate being adapted to operate said actuating means and the first mentioned punches.

11. In a machine of the character described, a movable plate and a stationary base, punches and dies carried, respectively, by the former and latter, other differently directed punches and dies mounted in said stationary base, actuating means for the latter punches and a work-guiding die-block, said movable plate being adapted to operate said actuating means and the first mentioned punches 12. In combination in a punching machine, a movable plate and a stationary base,

punches and dies carried, respectively, by the former and latter, opposingly disposed sets of punches and dies mounted 111 said said movable plate.

13. In a machine of the character de scribed, a movable plate and a stationary base, fixed and .slidable punches in the former and fixed and slidable dies in the latter, means for synchronously moving said slidable punches and dies past said fixed punches, other differently directed punches and dies mounted in said stationary-mem- -ber, actuating means for the latter punches,

and selective means for each of the punches,

said movable plate being adapted to operate selected punchesp a 14. In a machine of the'character clescribed, a movable plate and a stationarybase, synchronously movable punch and die blocks in the former and latter, respectively, differently positioned punches in the punch block and a gag immovable in the direction of the travel of said punch block but adapted to move transversely thereof to render any predetermined punch efl'ective.

15. In a machine of thecharacter described, a movable upper plate and a stationary loiver base, a dieblock also mounted in I said base and common to both punch blocks,

toggle mechanisms connecting each punch block with said base and said upper'plate Copies of this patent may be obtained for five cents each, by addressing the commissioner of Patents," 'Washington, D. C. i V

punches. r 1

and selective means for, rendering each chine, a stationary bed,- a plurality of punches movable toward-each other, a Work holdingmemberv intermediate said punches, a movable slide, and toggle connections intermediate' said stationary bed, movable punches and slide adapted upon movement of the slide to actuate the said plurality of 17. In combination in a'punching mach ne, a stationary bed having shouldered portions, a plurality ofpunches shdable on said bed, a movable slide, gags in said slide and'a toggle connection from said slide in proximity to said gags adapted to force said toggle against the shoulders of the bed and to move said punches toward each other.

18. In combination in a" punching machine,a fixed bed, a punch block movable thereupon, means for slidably locking the punch block inoperative relation to said bed,

a slide and a toggle 'operatively movable With said slide and punch'block and held in fixedoperative relation to said bed.

In Witnessivhereof I have hereunto set my hand in the presence of two Witnesses.

FREDERICK A, srEvENsoN; Witnesses: J V

ELIOT IV. STUDER, ARNOLD L. PIPPER. 

